@JoeConyers similar to appfigures is App Annie, which I used religiously for the last few years. Great product for (1) detailed breakdown of your own app analytics across platforms, i.e. iOS, Android as well as stores, i.e. App Store, Google Play, Amazon, etc and (2) competitive intelligence in rank by category.
Take a look: http://www.appannie.com/apps/ios...

@daveambrose Yea, App Annie is quite similar. One of the core differences is that App Annie sells and exposes your data, which if you are in a competitive category can be a big drawback. These guys are more of the enterprise play.